Panthera probably evolved in Asia, but the roots of the genus remain unclear. Genetic studies indicate that pantherine cats diverged from the subfamily Felinae between six and ten million years ago. Fossil records that appear to belong within the Panthera genus reach only 2.0 to 3.8 million years back.
Symbols. 1  The Screech Owl is the sacred bird of Hades. 2  Cypress Tree are the trees sacred to Hades, Aphrodite, and Artemis. 3  Cerberus, was his three headed pet dog is a symbol of his. 4  Snakes were sacred to him due to his previous role as a snake god called Zeus Meilichios.
Zeus was lucky to be the ruler of the sky, Poseidon the sea, and Hades the Underworld. Therefore, Hades reigns in the dark world of the dead, while on the contrary, Zeus is the ruler of the upper world of the living. The helmet (Kynee) is the main symbol of Hades' power, which signalled the deep night in which the God reigns.